M27C256B-90B6

The M27C256B-90B6 is a high-performance 256-kilobit (32KB) CMOS EPROM (Erasable Programmable Read-Only Memory) chip, commonly used in embedded systems and microcontroller applications. It is organized as 32,768 words by 8 bits and is designed for fast access times, with a typical access time of 90 nanoseconds, making it suitable for systems requiring quick data retrieval.
The "90B6" suffix indicates specific performance and packaging features. The chip is housed in a 28-pin dual in-line package (DIP), making it relatively easy to integrate onto circuit boards. The EPROM can be electrically programmed and requires exposure to ultraviolet (UV) light to erase the stored data, allowing it to be reused.
Key features include compatibility with TTL (Transistor-Transistor Logic) levels, low power consumption due to CMOS technology, and data retention of up to 20 years. The M27C256B-90B6 is often utilized in applications requiring non-volatile storage, such as firmware storage in various electronic devices. Its reliability and ease of programming make it a popular choice for prototyping and development work.

The M27C256B-90B6 is a 32K x 8 (256Kb) UV EPROM with a DIP-28 (Dual In-line Package) type. This package type is a standard through-hole configuration with 28 pins, typically used for programmable read-only memory in various electronic applications.

The M27C256B-90B6 is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. It is known for its innovation in microelectronics and provides solutions for various applications, including automotive, industrial, personal electronics, and communications equipment. The company is headquartered in Geneva, Switzerland, and operates worldwide with numerous research and development facilities and manufacturing plants.

The M27C256B-90B6 is a 256Kb UV EPROM (Erasable Programmable Read-Only Memory) with a 90 ns access time. Its application areas include embedded systems, microcontroller firmware storage, digital circuits requiring non-volatile memory, and legacy systems maintenance. It is typically used in applications where data needs to be stored permanently but can be updated periodically, such as in industrial control systems, consumer electronics, and automotive systems.

The M27C256B-90B6 is a 256Kb (32K x 8) UV EPROM with a 90 ns access time. Equivalent products include the AT27C256R by Atmel, the AM27C256 by AMD, and the TMS27C256 by Texas Instruments. These chips have similar storage capacities, pin configurations, and electrical characteristics, making them suitable replacements in many applications. However, always verify specific requirements like access time and programming voltage compatibility.